Sue Daly / Black faced blenny (Tripterygion delaisi) female and male Sark, British Channel Islands, July.

Sue Daly / Black faced blenny (Tripterygion delaisi) Guillaumesse, Sark, British Channel Islands.

Sue Daly / Black faced blenny (Tripterygion delaisi) Guillaumesse, Sark, British Channel Islands.

Franco Banfi / Black-faced blenny female (Tripterygion delaisi) Ischia Island, Italy, Tyrrhenian Sea, Mediterranean

Alex Mustard / Yellow male Black faced blenny (Tripterygion delaisi) displaying, Swanage, Dorset, UK. English Channel.

Alex Mustard / Triplefin (Tripterygion delaisi) showing its breeding colours of a dark face and yellow body. Swanage, Dorset, England, United Kingdom. English Channel. North East Atlantic